alfasolar GmbH
Ahrensburger Str. 4 6, 30659 Hannover
Geschäftsführer:
Dipl.-Ing. M. Denz (CEO) / Dipl.-Kfm. K.-W. Hoffmann (CFO)
Amtsgericht Hannover HRB 544 55
Gerichtsstand und Sitz: Hannover
Seite 12 von 29
Tel:
Fax:
Mail:
Web:
+49 (0) 511-261 447-0
+49 (0) 511-261 447-50
[email protected]
www.alfasolar.de
Revision-Index:
Issued:
Doc.-Nr.
08
2012-12-13
ALE-IEC-01
3.4
Installation of alfasolar solar modules with alfasolar A2 fastening system
3.4.1
Pre-installation planning
For a pitched roof, two rows of roof hooks or roof fasteners are secured to the load-bearing
roof substructure. The mounting rail is then secured to these elements. Each module row is
supported by two mounting rails. The module rows are arranged on and secured to the
mounting rails by means of end and center fastening clamps. The modules are normally in-
stalled with their long sides orientated vertically.
Ultra-stable roof hooks are used for interlocking-tile and pantiled roofs. Special roof hooks are
also available for special kinds of tiles. For corrugated Eternit roofs or profiled sheet metal
roofs, a set of fasteners with a special hanger bolt and rubber seal is available. On standing
seam or Kalzip roofs, the rails are secured to the sheet metal seams with sheet metal seam or
Kalzip clamps.
We recommend you to make a sketch for the arrangement of the modules first.
Regarding the interconnection of the solar modules you should consider the position of the
junction boxes and the input voltage of the inverter. It might be necessary to work with cable
extensions.
3.4.2
Recommended tools
Handheld FLEX grinder with small diamond blade and replacement blade, no. 15 ratchet box
wrench, battery-driven screwdriver or drill with Torz TX25 and 5 mm hex drill bit set, 5 mm
hex key, string, tape (for labeling and for securing the string), tape measurer, measuring stick,
vial level, pencil for marking, pen and paper for sketching, hand-held gas stove for heat-shrink
sleeve, crimping pliers for crimp connectors, optional connector-fitting tool with connectors.
Wood shims to place for under the roof hooks and to even out height differences.
3.4.3
Checking completeness of parts
Prior to installation, make sure that all parts listed in the packing list are present. The parts list
and packing lists can be found in the packets. The parts list indicates which parts belong to
each individual module row.
AT T ENT I ON
:
Please consider the corrosion resistance of stainless steel V2A. For the installation in a high
corrosive surrounding (such as coastal regions, ammonia or acids) specially coated materials
should be used.
